These 4 signs indicate that your wound dressing needs changing.

Many people change dressings based on a set schedule. If the doctor says to change them every two days, they'll stick to that. If the doctor says twice a week, they'll do it on Wednesdays and Sundays. But wounds don't grow according to a calendar. When there's a lot of exudate, the dressing will be saturated in half a day; when there's less exudate, it can stay on for four or five days without a problem. Changing dressings based on schedule is less effective than changing them based on signals. The appearance of any of the following four signals indicates that the dressing needs changing.

Signal 1: The seepage is about to reach the edge.

Dressings have limited absorption capacity. When exudate seeps from the wound and is absorbed by the dressing, a wet patch forms on its surface. This wet patch continues to spread, and it should be changed when it is less than 1 centimeter from the edge of the dressing. If it is not changed at this point, the exudate will continue to leak from the edge, contaminating clothing and sheets, and bacteria may also enter the wound from the wet edge.

How to tell? You can directly inspect transparent dressings. For opaque foam dressings, gently press them; if they feel plump and soft inside, they've absorbed a lot. If liquid is already squeezing out from the edges when you press, it's too late and you should change them sooner.

Signal 2: The edges of the dressing are curled up or loose.

No matter how firmly a dressing is applied, the edges will eventually curl up after a few days. This is especially common when applied to frequently moving areas such as joints, neck, and heels. Once the edges curl up, the wound is no longer sealed, and bacteria from the air, lint from clothing, and water from showering can all get in through the gaps.

Some foam dressings have beveled edges to reduce the chance of curling, but they're not completely immune. Therefore, check the dressing daily around the edges and replace it with a new one if you notice any curling. If only a small corner is curling, you can reinforce it with a small piece of medical tape, but if it's curled more than 1 cm, it's best to replace the entire dressing.

Signal 3: Abnormalities appear in the skin around the wound

When changing dressings, don't just look at the wound itself, but also at the skin around it. If any of the following conditions occur, it indicates that the dressing needs to be changed earlier, or even that the wound condition needs to be reassessed:

The surrounding skin is red, and the redness has expanded since the last dressing change. The surrounding skin feels warmer than other areas. The patient reports itching, stinging, or burning sensations at the dressing application site. Small rashes or blisters have appeared on the skin surface.

These could be signs of an adhesive allergy, excessive moisture under the dressing, or the spread of an infection. Regardless of the cause, remove the dressing and observe for a day. If the rash subsides, it may be an allergic reaction; try a hypoallergenic brand of dressing. If the redness and swelling increase or the pain worsens, seek medical attention.

Signal 4: An unusual odor appears under the dressing. 

Normal wound exudate, whether clear or pale yellow, generally has no noticeable odor. If you smell a foul, fishy, or putrid odor when you remove the dressing, it indicates that the wound may be infected with bacteria. Anaerobic bacterial infections, in particular, have a very strong odor.

At this point, don't just replace the dressing with a new one. Carefully observe the wound: what color is the exudate—is it cloudy yellowish-green or bloody? Is there gray or yellow necrotic tissue at the base of the wound? Is the surrounding skin red, swollen, hot, or painful? If there's only a slight odor and no other abnormalities, you can thoroughly rinse the wound with saline solution before applying a new antibacterial dressing, such as a silver-containing dressing. If the odor is significant and accompanied by redness, swelling, or cloudy exudate, it's recommended to seek medical attention. 

How often should I get checked?

Even if none of the above signs appear, the dressing should be checked regularly. Post-operative or acute wounds should be checked at least once a day. Chronic wounds should be checked every two days. If the patient is unable to check the dressing themselves, a family member can help, or photos can be taken for documentation.

For functional dressings that can be worn continuously for several days, such as certain foam dressings or negative pressure dressings, it is not necessary to remove them every day, but the outer layer should be observed every day: whether there are traces of exudate, whether there is any odor coming from the edges, and whether the patient has reported any local discomfort.

Common Misconceptions about Dressing Change

One misconception is that changing dressings as frequently as possible is better. Frequent tearing and peeling can damage newly formed tissue, especially during the granulation tissue growth period; each tear can potentially rip off newly grown cells. Another misconception is waiting until the dressing is completely worn out before changing it. If the dressing is already saturated with exudate, the edges are curled, and it has an odor, stubbornly leaving it on will only worsen the wound. Yet another misconception is focusing only on the wound and neglecting to assess the condition of the dressing itself when changing it. 

Changing dressings isn't just about timing; it's about paying attention to signals. When oozing is nearing the edge, spending just one minute each day checking the dressing's condition is more scientific than changing it on a strict schedule. This also minimizes stress on the wound and promotes smoother healing. For more information on Innomed® Silver Ion Dressing Foam, refer to the Previous Articles. If you have customized needs, you are welcome to contact us; You Wholeheartedly. At long-term medical, we transform this data by innovating and developing products that make life easier for those who need loving care.

Editor: kiki Jia